mongodb 分片 副本集 集群

地址:https://docs.mongodb.org/manual/tutorial/convert-replica-set-to-replicated-shard-cluster/


Overview

This tutorial converts a single three-member replica set to a sharded cluster with two shards. Each shard is an independent three-member replica set. This tutorial is specific to MongoDB 3.2. For other versions of MongoDB, refer to the corresponding version of the MongoDB Manual.

The procedure is as follows:

  1. Create the initial three-member replica set and insert data into a collection. See Set Up Initial Replica Set.
  2. Start the config servers and a mongos. See Deploy Config Server Replica Set and mongos.
  3. Add the initial replica set as a shard. See Add Initial Replica Set as a Shard.
  4. Create a second shard and add to the cluster. See Add Second Shard.
  5. Shard the desired collection. See Shard a Collection.

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